/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlinePartyInterface.h
Set party data and broadcast to all members Only current data can be set and no history of past party data is preserved Party members notified of new data (see FOnPartyDataReceived)
true if task was started
bool UpdatePartyData ( const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & LocalUserId, const [FOnlinePartyId](API\Plugins\OnlineSubsystem\FOnlinePartyId) & PartyId, const [FName](API\Runtime\Core\UObject\FName) & Namespace, const [FOnlinePartyData](API\Plugins\OnlineSubsystem\Interfaces\FOnlinePartyData) & PartyData )